// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "content/browser/memory/memory_message_filter.h"

#include "content/browser/memory/memory_pressure_controller_impl.h"
#include "content/common/memory_messages.h"

namespace content {

MemoryMessageFilter::MemoryMessageFilter(
    const BrowserChildProcessHost* child_process_host,
    ProcessType process_type)
    : BrowserMessageFilter(MemoryMsgStart)
    , process_host_(child_process_host)
    , process_type_(process_type)
{
    DCHECK_NE(process_type_, PROCESS_TYPE_RENDERER);
}

MemoryMessageFilter::MemoryMessageFilter(
    const RenderProcessHost* render_process_host)
    : BrowserMessageFilter(MemoryMsgStart)
    , process_host_(render_process_host)
    , process_type_(PROCESS_TYPE_RENDERER)
{
}

MemoryMessageFilter::~MemoryMessageFilter() { }

void MemoryMessageFilter::OnFilterAdded(IPC::Channel* channel)
{
    MemoryPressureControllerImpl::GetInstance()->OnMemoryMessageFilterAdded(this);
}

void MemoryMessageFilter::OnChannelClosing()
{
    MemoryPressureControllerImpl::GetInstance()
        ->OnMemoryMessageFilterRemoved(this);
}

bool MemoryMessageFilter::OnMessageReceived(const IPC::Message& message)
{
    return false;
}

void MemoryMessageFilter::SendSetPressureNotificationsSuppressed(
    bool suppressed)
{
    Send(new MemoryMsg_SetPressureNotificationsSuppressed(suppressed));
}

void MemoryMessageFilter::SendSimulatePressureNotification(
    base::MemoryPressureListener::MemoryPressureLevel level)
{
    Send(new MemoryMsg_SimulatePressureNotification(level));
}

void MemoryMessageFilter::SendPressureNotification(
    base::MemoryPressureListener::MemoryPressureLevel level)
{
    Send(new MemoryMsg_PressureNotification(level));
}

} // namespace content
